Preparation of Super Absorbent Resins with Nitrocellulose

Li Li,  Xu Bin,  Zhao Baochang#,  Yang Dong#
(College of Chemistry & Environmental Science, Nanjing Normal University, Nanjing  210097)
(# College of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094)

Abstract  Copolymers of nitrocellulose(NC) and acrylic acid salt are synthesized as super absorbent resins(SAR) from waste NC fiber and NC products. The influences of such factors as composition of comonomers, initiator, crosslinking agent and neutralizer on the absorption capacity of the resins are also discussed. The optimum absorption capacity of the obtained SARs is 952g/g, 73g/g and 3g/g in distilled water, 0.9% NaCl solution and 50% alcohol solution respectively. The obtained SARs are not inflammable.
Key words  Nitrocellulose,   Super absorbent resin,  Acrylic acid

利用硝酸纤维素合成高吸水性树脂

    赵宝昌#   #
(
南京师范大学化学与环境科学学院  南京  210097  #南京理工大学化工学院  南京   210094)

  通过硝酸纤维素与丙烯酸盐共聚的反应方法,以过期的火棉纤维和废胶棉制品为原料合成了高吸水性树脂,并探讨了不同原料配比、不同引发剂、不同交联剂、不同中和剂对产物性能的影响。得到的产品吸蒸馏水率可达几十倍至近千倍自重,吸生理盐水率可达数十倍自重,吸醇率低。产品不具有易燃性。
关键词  硝酸纤维素  高吸水性树脂  丙烯酸


男,33岁,副教授,博士,主要从事功能高分子及含能材料研究。
江苏省科技厅社会发展基金(BS00015)及南京师范大学材料科学重点实验室基金资助项目
2003-01-02收稿

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